Combined steam-heating and ventilating apparatus



(No Model.) 2 Sheets-Sheet 1. A. SHOGREN.

COMBINED STEAM HEATING AND VENTILATING APPARATUS.

V in

Patented Oct. 19, A886 (No Model.) 2 Sheets-Sheet 2.

A. SHOGREN.

COMBINED STEAM HEATING AND VENTILATING APPARATUS.

No. 350,949. Patented Oct. 19, 1886.

lhvrran States Patent Garter...

ANDRIHV SHOGREN, OF AURORA, ILLINOIS.

SPE CIFICATZO'I'I f To aZZ whom it may concern.-

Be it known that I, AXDREW Snocnnu, rcsiding at Aurora, Illinois, have invented certain new and useful Improvement in a Oombined SteamIIeating and Ventilating Apparatus, of which the following is a specification.

My invention relates to a combined heating and ventilating apparatus, and has for its objecttoprovidesimple,economicahand effective means for supplying buildings with steam heat and pure warm air for ventilating purposes.

In the accompanying drawings, Figure 1 is a central vertical section of my improved heating apparatus, and Fig. 3 is a longitudinal section of thesame.

The apparatus illustrated in the drawings has .an upright tubular boiler,a central fuel-magazine, A, the latter having an adjustable extension, terminating within a tapering firepot, 13, below which is the ash-pit. This fuelmagazine A extends above the boiler and through the top plates, hereinafter described, and has a cover, a, which is .removed when the magazine is to be filled. The fire-pot rests upon an elevated portion, 0, of abase-plate, O, and the latter has flanges c c, which receive the lower ends, respectively, of two jackets which inclose the boiler. A second circular plate, I), surrounds the shell of the boiler and closes the space between the latter and the jacket I, forming with the latter and the baseplate 0 an annular smoke-chamber, E. A flue, E, leads from the back of this smoke-chamber to a smoke-pipe at the rear. A series of direct ilues, F, proceed from the top of the firepot up through the steam-space and open into an annular smoke-chamber, G. Proceeding downward from this chamber is a series of return-fines, H, which pass down through the waterspace of the boiler and open into the smoke-ehamber E. The top of smoke-chamber G is formed by a cap, G, surrounding the fuelmagazine and havinga projecting flanged rim, g. The cap G has openings corresponding in position and number to the lines to permit access to them for cleaning. These openings are covered by a removable top plate or cover, g, except when the flues are being cleaned. A

jacket, I, incloses the boiler, its lower end resting on base-plate D, and its upper end resting against the under side of the rim g. The jacket I, the base-plate D, the rim g, and the 1; part of Letters Patent No. 350,949, dated Ostobe: 19,1886.

Application filed November 28, 1885.

Serial No. lSLlSil. (X0 model.)

outer shell of the boiler formaheat-reservoir, which has direct communication with the firepot through transverse fluesM M. In operation this reservoir will become filled with the products of combustion, and to insure the passage of the products of combustion from the fire-pot into this chamber the plate D may be loosely fitted, so as to maintain. a limited draft from the lire-pot through this chamber or heat-reservoir and into the smoke-chamber E, thus heating said chamber by direct heat. It will bcunderstood, however,that the p rincipal portion of the products of combustion pass up the fines F. A second j acket, J, surrounds the first, its lower end resting on base-plate O, and the space between its upper end and the jacket I is closed by means of a removable cap or cover, j, which surroundsthe upper end of the fuelmagazine. Air-pipes K lead from the upper end of this chamber to conduct the warmed air to the rooms to be ventilated. Fresh atmospheric air is admitted to the space between. the jackets by a pipe, It.

To prevent the cold air rising immediately on entering its chamber, andto cause it to circulate around the warm-air chamber,I provide a flange, L, which closes the space between the two jackets at a point abouthal f way up their sides, and extends about half-way around, as shown in Fig. 2. Thejacket J is provided with a door opening opposite thefrontflue,l\T,through which access is had to the fire-pot for putting in kindling or soft coal.

To prevent dropping of the coal, &c.,into the chambers I provide a trough, N, which extends from the outer-jacket to the boiler-shell. A direct-dralt flue, 0, opens at one end into the chamber G, and at the other into the smokepipe I at the rear. This flue O and pipe I are provided with suitable dampers, 0p. A steanrpipe, S, communicates with the steamspace ol'the boiler. It will be understood that this steam-pipe is designed to communicate with steam-coilsin the apartmenttobewarmed, and that the hot-air pipes from the ventilatorchamber are designed to communicate with. suitable registers in the same apartment for Ventilating purposes.

It is apparent that the ventilator-chainber may be employed as a cold-air ventilator in warm weather when no steam is generated.

By my construction and arrangement means for securing warm air for ventilating purposes are combined with a steam-boiler designed to furnish steam heat in a simple and convenient manner, and the employment of the heat-reservoir results in an appreciable economy of fuel, prevents the cooling of the shell of the boiler by the cold air in the outer chamber, and provides for heating this air.

I am aware that combined steam-heating and air-warming apparatuses are old, and therefore do not claim such, broadly.

\Vhat I claim as new, and desire to secure by Letters Patent, is

In asteain-heatingand ventilating apparatus, the combination of an upright tubular I 5 boiler having a central fuel-magazine and firepot and suitable smoke-passages, an inner surrounding jacket forming with said boiler a v heat-reservoir, a transverse fiue or fines oommunicating with said reservoir and said fire 20 pot-,and an outer surrounding jacket provided with an opening to admit atmospheric air, andoutlet-pipes for said air when heated, substantially as described.

ANDREXV SHOGREN. \Vitnesses:

M. O. SoUTWoRTH, LIDA POPE. 

